Cement-block construction.



CIT

` .ALLEN C; SHIM'EROF' AND-Essor, lamera- CEMENT-:encon consrnncrron.

Licence.

Specification of Letters'atent. atehted NOV. 30, 19115.

ApplcationiledMarch 4, 1915.vr `Serial No. 12,065..

T0 all whom it may concern.' l

Be it known that I, ALLEN C. SI-IiMnn, a citizen of the United States, and a resident of' Anderson, county of Madison, and State of indiana, have inventeda certain new and useful Cement-Block Construction; and l do hereby declare that the followingis a full,

clear, and eXact description thereof, reference being had to the accompanying drawings, in which like letters refer to like parts; The obj ect of this invention is to simplify the assembling and the efiiciency of concrete blocks for buildingsilosand other' structures.

One feature of4 the invention consists in making'l one form of block out of'which the entire structure may be built and said block being so arranged that its location in proper place is predetermined and, therefore, it requires no care or time or eXpertness in loeating the block inthe structureV and most anybody can build up the structure with such blocks and cannot put the blocks in wrong places, as they can only lit ytogether one way. Said blocks are also made in such manner that they prevent longitudinal displacement and often vertical displacement, as well as lateral or outward displacement. ln other words, the blocks, after being assembled, cannot be displaced. This is also accomplished without tie bars or bands.

The full nature of the invention will be understood from the accompanying drawings and the following 'description and claims. r

ln the drawings, Figure 1 is a perspective view of the structure formed of three of said blocks. Fig. 2 is a central vertical section through said structure shown in Fig. 1. Fig. 3 is a section on the line 3 3 of Fig. 2. Fig. 4 is a perspective View of one of said blocks turned upside down.

The block 10 has vertical end grooves 11 adapted to register with each other so that when filled with cement 9 the adjacent blocks will be interlocked.

On the underside of each block and near each end thereof, there is a projecting portion 12 and between said projecting portions 12 of said block, there is a recess with a reduced projecting portion 13. This reduced projecting portion 13 extends equidistant beyond the middle of the block and the projecting portions 12 extend equidistant from the end of the block.

In the upper sides of the blocks there is a central recess 14 in vertical alinement or immediately over the reduced yshoulder 13 von1 the underside and a'reduced recess 15 near each endimmediately over .and in vertical alincment with the projecting portions 12 on the underside. 1n kthe form herein shown those projections and recesses are in the same plane as theend recesses 11, although that is not necessary. In all of the blocks the projections and recesses. are 'equidistant from one side of the blocks. Shoulders 16 are in the upper side-of each block in each end of thevk recess 14.

In assembling the blocks or building a structure, akk superimposed block centrallyk overlaps the adjacent ends of two blocks below, as shown in Fig. 2, so that the projecting portions 12 on the underside of the upper block will enter and fit in the recesses 14 in the two lower blocks and said lower projections 12 interlock with the shoulders 16 on the upper sides of the blocks below. rlfhe lower projecting portions 12 are about half as long as the recesses 14 so that the lower projections 12 on the two adjacentblocks will substantially fill one of the recesses 14 in the-upper side of a lower block and each projection 12 fits in one end of said recess 14 and against a shoulderl.

The recesses in the upper side of the blocks are filled with liquid cement 9 so that when the cement is set the blocks will be more tightly held in place and the oints be water tight. The projections 12 and 13 are removed from the under sides of the bottom layer of blocks when it is desired to start the structure on a solid foundation. Otherwise the blocks are all of the same formation.

It is thus seen that the projections 12 and shoulders 16 prevent longitudinal displacement of the blocks, against any reasonable stra-in and in circular structures like silos, the outward thrust tends to cause the longitudinal separation or displacement of the blocks. rIhis prevents this result. Also lateral displacement of these blocks cannot take place because the projections 12 and 13 enter corresponding recesses inthe tops of the blocks below them. While the tendency tokward vertical displacement is less than either the'longitudinal or lateral displacement, still that is prevented largely by the cement binding between the joints of the blocks andy can be entirely prevented by making the' projections and recesses dovethe recesses. It is not very material Whether` the shoulders which projectl from the re- Y cesses are in theupper or lower sides of the blocks so long as they interlock, substantially as shown. j

` The invention claimed is:

l. A cement building block having on one side a longitudinal projection narrower than the block and with the end portions projecting morethan the intermediate portion, a longitudinal recess in the opposite side of the block and Wider than said projection but narrowerthan the block and in the same plane as said projecting portion, and a shoulder in each end of said recess corresponding with the end projection on the n opposite side of said block, whereby the pr0- Genies of this patent may beY obtained for jecting portion on one side of a block will Tof said blocks.

Q VA Wall built of overlapping cement building blocks, each having in its upper sideV a longitudinal recess lwith the middle portion thereodeeper than the end portions thereof and on its under side a longitudinal projection With its end portions projecting more than its middle portion, and liquid cement in said recesses in the blocks, so the blocks will interlock substantially as shown.

in Witness whereof, I have hereunto ai fixed my signature in the presence of the Witnesses herein named.

ALLEN C. SHIMER. Witnesses:

Y J. H. lVELLs,

R. G. LocKWooD.

ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

